Apparatus for manufacturing seamless bias fabrics using tubular fabrics

ABSTRACT

Disclosed is a seamless bias fabric manufacturing apparatus using tubular fabric, the apparatus including: a guide means having a pair of guide bars for guiding tubular fabric woven such that an angle between a warp and a weft is 90 degrees; a cutting means having a disk-shaped cutting blade for cutting one radial side of the tubular fabric in an inclined direction with respect to a progress direction of the tubular fabric guide by the guide means; and a winding means having a winding roller for continuously guiding the tubular fabric through the guide means while rotating the tubular fabric and winding the bias fabric cut by the cutting means.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a bias fabric manufacturing apparatus, and more particularly to a seamless bias fabric manufacturing apparatus using cylindrical fabric by which bias fabric can be manufactured by cutting fabric woven to have a tubular shape.

2. Description of the Prior Art

FIG. 1 is a view showing general fabric, and FIG. 2 is a view showing bias fabric.

General fabric C (see FIG. 1) form a planer form as warps Wp and wefts Wt are woven repeatedly, and fabric C simply refer to plane weave fabric in which warps Wp and wefts Wt is woven at a weaving angle θ1 of 90 degrees, that is, at a vertical angle of 90 degrees.

Meanwhile, bias fabric V (see FIG. 2) refer to fabric in which a weaving angle θ2 (hereinafter, referred to as a biasing angle) of wefts Wt with respect to warps Wp is an oblique angle other than 90 degrees, and have excellent tension and durability compared to plane weave fabric. The bias fabric V is used in various fields such as collars of clothes, bands, industrial belts (timing belts of vehicles), and tires.

Methods of manufacturing bias fabric according to the related art will be described briefly. The methods include a first method of weaving plane weave fabric, and manufacturing bias fabric by pulling opposite sides of the woven plain weave fabric in opposite directions to obliquely change the weaving angle, a second method of manufacturing bias fabric by obliquely cutting plain wave fabric, and a final method of manufacturing bias fabric by obliquely disposing wefts with respect to warps directly by a weaving machine.

SUMMARY OF THE INVENTION

However, according to the first method, since bias fabric is manufactured by weaving plain weave fabric by using a weaving machine and providing an additional angle, productivity is lowered severely and manufacturing costs increase.

According to the second method, since the length of the biased fabric is limited and the cut bias fabric need to be connected to each other to obtain a desired length, connecting portions are formed and are apt to be broken.

Further, according to the first and second methods, since the plain weave fabric is biased by a physical force, physical characteristics such as tensile strength lower and high tensions and high durability cannot be sufficiently achieved, quality of the bias fabric lowers.

Finally, the third method has an advantage of solving the problems of the first and second methods, but since a new weaving machine should be manufactured to obtain bias fabric, costs for the weaving machine are generated.

Thus, development of an apparatus for providing lower costs, high productivity, and manufacturing bias fabric having no connecting portions is urgently required.

Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an aspect of the present invention is to provide a seamless bias fabric manufacturing apparatus using tubular fabric which includes a guide means for guiding tubular fabric at a biasing angle, a cutting means for cutting the tubular fabric in an inclined direction with respect to a progress direction of the tubular fabric guided by the guide means, and a winding means for continuously supplying the tubular fabric through the guide means while rotating the tubular fabric and winding the bias fabric cut by the cutting means, so that low costs and high productivity can be provided without causing connecting portions, and bias fabric having various biasing angles can be produced.

In order to accomplish this object, there is provided a seamless bias fabric manufacturing apparatus using tubular fabric, the apparatus including: a guide means having a pair of guide bars for guiding tubular fabric woven such that an angle between a warp and a weft is 90 degrees; a cutting means having a disk-shaped cutting blade for cutting one radial side of the tubular fabric in an inclined direction with respect to a progress direction of the tubular fabric guide by the guide means; and a winding means having a winding roller for continuously guiding the tubular fabric through the guide means while rotating the tubular fabric and winding the bias fabric cut by the cutting means.

As described above, the seamless bias fabric manufacturing apparatus using tubular fabric includes a guide means for guiding tubular fabric at a biasing angle, a cutting means for cutting the tubular fabric in an inclined direction with respect to a progress direction of the tubular fabric guided by the guide means, and a winding means for continuously supplying the tubular fabric through the guide means while rotating the tubular fabric and winding the bias fabric cut by the cutting means, so that low costs and high productivity can be provided without causing connecting portions, and bias fabric having various biasing angles can be continuously produced.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a view showing general fabric;

FIG. 2 is a view showing bias fabric;

FIG. 3 is a perspective view showing a seamless bias fabric manufacturing apparatus using tubular fabric according to the present invention;

FIG. 4 is a plan view schematically showing the bias fabric manufacturing apparatus shown in FIG. 3;

FIG. 5 is a perspective view showing an angle adjusting unit and a width adjusting unit shown in FIG. 4;

FIG. 6 is an exploded perspective view showing the angle adjusting unit shown in FIG. 4; and

FIG. 7 is a view schematically showing a principle of manufacturing bias fabric by using the bias fabric manufacturing apparatus according to the present invention.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

Hereinafter, a bias fabric manufacturing apparatus using tubular fabric according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 3 is a perspective view showing a seamless bias fabric manufacturing apparatus using tubular fabric according to the present invention.

Referring to FIG. 3, the bias fabric manufacturing apparatus 100 according to the present invention includes a guide means 120 for guiding tubular fabric C (see FIG. 7) at a biasing angle θ2 (see FIG. 2), a cutting means 160 for cutting one radial side of the tubular fabric C in an inclined direction with respect to a proceeding direction of the tubular fabric C guided by the guide means 120, and a winding means 110 for continuously guiding the tubular fabric C through the guide means 120 while rotating the tubular fabric C, and winding the bias fabric V cut by the cutting means 160.

First, the winding means 110 includes a winding roller 112 disposed horizontally. As shown, the winding roller 112 is rotatably disposed on a frame F, and is driven by a winding roller driving motor 114. Preferably, guide rollers 116 spaced apart from each other vertically may be provided on a front surface of the winding roller 114.

The bias fabric V cut by the cutting means 160 is wound on the winding roller 114. The winding roller 114 continuously supplies the tubular fabric C toward the guide means 120. A guide means 120 and the cutting means 160 are disposed on a front side of the winding means 110 having the winding roller 112.

FIG. 4 is a plan view schematically showing the bias fabric manufacturing apparatus shown in FIG. 3.

Referring to FIGS. 3 and 4, the guide means 120 includes a pair of guide bars 122. The guide bars 122 have a rod shape, and horizontally extend from a front side of the winding means 110 toward the front outside of the winding means 110 while being disposed to be freely rotatable with respect to the rotary center axes of the guide bars 122. The guide bars 122 are disposed to be inclined on one side at a predetermined angle with respect to the winding roller 112 when viewed from the top. That is, when viewed from the top, the rotary center axis of the winding roller 112 and the rotary center axes of the guide bars 122 form an oblique angle.

The tubular fabric C is mounted on the pair of guide bars 122, and the tubular fabric C mounted on the pair of guide bars 122 are spread out by the guide bars 122 to have a substantially elliptical cross-section shape. The tubular fabric C guided along the guide bars 122 are guided while being rotated to one side, in which case since the bias fabric V cut by the cutting means 160 are wound on the winding roller 112 forming an oblique angle with the guide bars 122 along a rotating direction of the winding roller 112 and the tubular fabric C is guided obliquely with respect to the winding roller 112, the tubular fabric C is rotated to one side while being guided along the guide bars 122.

Meanwhile, the guide means 120 further includes a first angle adjusting unit 124 for rotating the guide bars 122, and a width adjusting unit 142 for adjusting a width between the guide bars 122. Here, the first angle adjusting unit 124 rotates the guide bars 122 to obtain a desired biasing angle and the width adjusting unit 142 adjusts a width between the guide bars 122 to guide the tubular fabric C while the tubular fabric C is easily spread out, and the first angle adjusting unit 124 and the width adjusting unit 142 are disposed at ends of the guide bars 122 disposed adjacent to the winding means 110.

FIG. 5 is a perspective view showing the first angle adjusting unit and the width adjusting unit shown in FIG. 4, and FIG. 6 is an exploded perspective view showing the first angle adjusting unit shown in FIG. 4.

As shown, the first angle adjusting unit 124 includes a first fixing plate 126 having a flat plate shape and disposed at ends of the guide bars 122, and a first rotary plate 128 having a flat plate shape. Then, ends of the guide bars 122 are rotatably supported on an upper surface of the first rotary plate 128, and bearings 130 for rotatably supporting the guide bars 122 are mounted onto an upper surface of the first rotary plate 128.

Meanwhile, the first rotary plate 128 is rotatably mounted to the first fixing plate 126. Thereto, a rotation boss 132 protrudes from the center of a lower surface of the first rotary plate 128, and a rotation hole 134 into which the rotation boss 132 is inserted passes through the first fixing plate 126. A first angle adjusting slot 136 and a first fixing hole 138 are formed in the first rotary plate 128 and the first fixing plate 126 to control a rotation angle of the first rotary plate 128. The first angle adjusting slot 136 provides a curvature having an arc shape, the center of which is the rotation boss 132 so as not to interfere with the rotation boss 132, and the first fixing hole 138 is formed to face the first angle adjusting slot 136 so as not to interfere with the rotation hole 134. A first fixing bolt 140 for fixing the first rotary plate 128 to the first fixing plate 126 is engaged with the first angle adjusting slot 136 and the first fixing hole 138. That is, after an angle of the first rotary plate 128 is adjusted by unfastening the first fixing bolt 140, the first fixing bolt 140 is engaged first, in which case the first fixing bolt 140 passes through the first angle adjusting slot 136 to press and fix the first rotary plate 128 toward the first fixing plate 126 while being engaged with the first fixing hole 126. Then, a female screw engaged with a male screw formed in the first fixing bolt 140 is formed on an inner peripheral surface of the first fixing hole 126.

Although the first fixing bolt 140 is used to fix the first rotary plate 128 in the specification, it will be appreciated that fixing of the first rotary plate 128 is not limited to the first fixing bolt 140.

Meanwhile, the width adjusting unit 142 includes a screw shaft 144 disposed at a lower portion of the first fixing plate 126 and extending along a lengthwise direction of the rotary center axis of the winding roller 112. The screw shafts 144 are rotatably disposed on a frame F like the winding roller 112. A sliding block 146 with which a screw shaft 144 is engaged is mounted at a lower portion of the first fixing plate 126, and it is apparent that a female screw engaged with a male screw formed in the screw shaft 144 is formed in the sliding block 146 such that the screw 144 is guided along a lengthwise direction of the screw shaft 144 as the screw 144 is rotated. Operation handles 148 for rotating the screw shafts 144 are mounted to the screw shafts 144, respectively.

Meanwhile, width adjusting guide rails 150 opposite ends of each of which are fixed onto the frame F are disposed on front surfaces and rear surfaces of the screw shafts 144. The width adjusting guide rails 150 extend from one end of one of the screw shafts 144 to an opposite end of the other screw shaft 144 along a lengthwise direction of the screw shaft 144, and a width adjusting guide block 152 slidably fitted with the width adjusting guide rails 150 while not interfering with the sliding block 146 is mounted to a lower portion of the first fixing plate 126.

Referring back to FIG. 3, the cutting means 160 includes a disk-shaped cutting blade 162 disposed at an upper portion thereof adjacent to one end of the guide bars 122 to cut one radial side of the tubular fabric C guided along the guide bars 122. The disk-shaped cutting blade 162 is obliquely disposed with respect to a direction of a warp Wp (see FIG. 7) of the supplied tubular fabric C, and preferably, the rotary center axis of the disk-shaped cutting blade 162 is disposed to be horizontal with the rotary center axis of the winding roller 112. If the disk-shaped cutting blade 162 cuts the tubular fabric C obliquely with respect to a direction of a warp Wp of the tubular fabric C, the bias fabric V is manufactured and the manufactured bias fabric V is wounded around the winding roller 112.

Meanwhile, the disk-shaped cutting blade 162 is surrounded by a housing 164 located below the disk-shaped cutting blade 162 and from which the disk-shaped cutting blade 162 is exposed, and a cutting blade driving motor 166 connected to the disk-shaped cutting blade 162 to rotate the disk-shaped cutting blade 162 is mounted to one side of the housing 164.

The cutting means 160 further includes a cutting location adjusting unit 168 for adjusting a cutting location of the disk-shaped cutting blade 162. The cutting location adjusting unit 168 includes a pair of cutting location adjusting guide rails 170 disposed above the housing 164 to be spaced apart from each other and horizontally extending along a rotary center axis direction of the disk-shaped cutting blade 162 such that opposite ends thereof are fixed to the frame F, and a cutting location adjusting guide block 172 slidably fitted with the cutting location adjusting guide rail 170. The cutting location adjusting guide block 172 is integrally formed with an upper portion of the housing 164, and a stop bolt 174 engaged with the cutting location guide block 172 to press and fix the cutting location adjusting guide rail 170 is engaged with an upper portion of the cutting location guide block 172.

Meanwhile, the bias fabric manufacturing apparatus 100 according to the present invention further includes a blowing means 180 for supplying air between sheets of the tubular fabric C such that the supplied tubular fabric C is easily cut and the cut bias fabric V is easily wound.

Referring to FIGS. 1 to 5, the blowing unit 180 includes an air blower 182, a blowing nozzle 184 disposed between ends of the pair of guide bars 122, and a flexible connection pipe 186 connecting the air blower 182 and the blowing nozzle 184. The blowing means 180 further includes a second angle adjusting unit 187 for rotating the blowing nozzle 184.

The second angle adjusting unit 187 includes a second fixing plate 188 fixedly mounted to the frame F disposed so as not to interfere with the screw shaft 144 and the width adjusting guide rail 150 between the pair of guide bars 122, and a second rotary plate 190 rotatably mounted to the second fixing plate 188 while the blowing nozzle 184 is mounted to an upper portion thereof. A second angle adjusting slot 192 and a second fixing hole 194 are formed in the second rotary plate 190 and the second fixing plate 188 to control a rotation angle of the second rotary plate 190. The second angle adjusting slot 192 is provided with a curvature having an arc shape, and the second fixing hole 194 is formed to face the second angle adjusting slot 192. A second fixing bolt 196 for fixing the second rotary plate 190 to the second fixing plate 188 is engaged with the second angle adjusting slot 192 and the second fixing hole 194. That is, after an angle of the second rotary plate 190 is adjusted by unfastening the second fixing bolt 196, the second fixing bolt 196 is engaged first, in which case the second fixing bolt 196 passes through the second angle adjusting slot 192 to press and fix the second rotary plate 190 toward the second fixing plate 194 while being engaged with the second fixing hole 188. Then, a female screw engaged with a male screw formed in the second fixing bolt 196 is formed on an inner peripheral surface of the second fixing hole 194.

The blowing nozzle 184 disposed in this way is disposed between ends of the pair of guide bars 122 to supply air through pieces of the tubular fabric C guided by the guide bars 122.

Hereinafter, an in-use state of the seamless bias fabric manufacturing apparatus 100 using the tubular fabric formed as described above will be briefly described.

In order to manufacture the bias fabric V by using the bias fabric manufacturing apparatus 100 according to the present invention, the tubular fabric C woven such that an angle between a warp and a weft is 90 degrees as in FIG. 1 first, a start end of the tubular fabric C is hung on the winding roller 112, and the pair of guide bars 122 on which the tubular fabric C is mounted is rotated to obtain a desired biasing angle by manipulating the first angle adjusting unit 124. Here, the biasing angle refers to an angle between a cut surface cut by the disk-shaped cutting blade 162, and the warp Wp and the weft Wt.

If the above-described tubular fabric C is mounted, the bias fabric V is manufactured by operating the winding roller 112, in which case the tubular fabric C is rotated while being guided toward the disk-shaped cutting blade 162 along the guide bars 122 if the winding roller 112 is rotated, the bias fabric V is manufactured by cutting one radial side of the tubular fabric C guided while the disk-shaped cutting blade 162 is rotated, and the manufactured bias fabric V is wounded around the winding roller 112.

That is, as shown in FIG. 7, since the disk-shaped cutting blade 162 cuts one radial side of the tubular fabric C in an inclined direction with respect to a progress direction of the tubular fabric C which is supplied while being rotated, the seamless bias fabric V can be continuously produced.

Although the exemplary embodiment of the present invention has been described, it will be appreciated by those skilled in the art that the present invention may be variously modified and changed without departing from the spirit of the present invention claimed in the claims. 

What is claimed is:
 1. A seamless bias fabric manufacturing apparatus using tubular fabric, the apparatus comprising: a guide means having a pair of guide bars for guiding tubular fabric woven such that an angle between a warp and a weft is 90 degrees; a cutting means having a disk-shaped cutting blade for cutting one radial side of the tubular fabric in an inclined direction with respect to a progress direction of the tubular fabric guide by the guide means; and a winding means having a winding roller for continuously guiding the tubular fabric through the guide means while rotating the tubular fabric and winding the bias fabric cut by the cutting means.
 2. The apparatus of claim 1, wherein the guide bars have a rod shape and extend from a front surface of the winding means to a front outer side of the winding means such that rotary center axes of the guide bars form an oblique angle with respect to a rotary center axis of the winding roller while being disposed rotatably.
 3. The apparatus of claim 1, wherein the tubular fabric is mounted on the pair of guide bars, and the tubular fabric mounted on the pair of guide bars are spread out to have an elliptical cross-section.
 4. The apparatus of claim 1, wherein the bias fabric cut by the cutting means are wound along a rotation direction of the winding roller on the winding roller forming an oblique angle with the guide bars along a rotation direction of the winding roller, and the tubular fabric is obliquely guided with respect to the winding roller to be rotated to one side.
 5. The apparatus of claim 1, wherein the guide means further comprises a first angle adjusting unit for rotating the guide bars, wherein the first angle adjusting unit comprises: a first fixing plate having a flat plate shape and disposed at one end of the guide bar; and a first rotary plate having a flat plate shape and disposed at one end of the guide bar; and wherein bearings for rotatably supporting the guide bars are mounted onto an upper surface of the first rotary plate.
 6. The apparatus of claim 5, wherein a rotation boss protrudes from the center of a lower surface of the first rotary plate, and a rotation hole into which the rotation boss is rotatably inserted passes through the first fixing plate.
 7. The apparatus of claim 6, wherein a first angle adjusting slot and a first fixing hole are formed in the first rotary plate and the first fixing plate to control a rotation angle of the first rotary plate, wherein the first angle adjusting slot provides a curvature having an arc shape, the center of which is the rotation boss so as not to interfere with the rotation boss and the fixing hole is formed to face the first angle adjusting slot so as not to interfere with the rotation hole, and wherein a first fixing bolt for fixing the first rotary plate to the first fixing plate passes through the first angle adjusting slot to be engaged with the first fixing hole to press and fix the first rotary plate to the first fixing plate.
 8. The apparatus of claim 5, wherein the guide means further comprises a width adjusting unit for rotating the guide bars, and wherein the width adjusting unit comprises a screw shaft disposed at a lower portion of the first fixing plate and extending along a lengthwise direction of the rotary center axis of the winding roller, a sliding block with which the screw shaft is engaged is mounted to a lower portion of the first fixing plate, and an operation handle is mounted to the screw shaft.
 9. The apparatus of claim 1, wherein the rotary center axis of the disk-shaped cutting blade is disposed to be horizontal with the winding roller such that the disk-shaped cutting blade is obliquely disposed with respect to an inclination direction of the tubular fabric.
 10. The apparatus of claim 9, wherein the disk-shaped cutting blade is surrounded by a housing from which a portion of the disk-shaped cutting blade is exposed, and a cutting blade driving motor connected to the disk-shaped cutting blade to rotate the disk-shaped cutting blade is mounted to one side of the housing.
 11. The apparatus of claim 9, wherein the cutting means further comprises a cutting location adjusting unit for adjusting a cutting location of the disk-shaped cutting blade, wherein the cutting location adjusting unit comprises a pair of cutting location adjusting guide rails disposed at an upper portion of the housing to be spaced apart from each other and horizontally extending along a rotary center axis direction of the disk-shaped cutting blade, and cutting location adjusting guide blocks slidably fitted with the cutting location adjusting guide rails, and wherein the cutting location adjusting guide block is integrally formed with an upper portion of the housing, and a stop bolt engaged with an upper portion of the cutting location guide block to press and fix the cutting location adjusting guide rail is engaged with an upper portion of the cutting location guide block.
 12. The apparatus of claim 1, further comprising a blowing means for supplying air between the tubular fabric such that the guided tubular fabric is easily cut and the cut bias fabric is easily wound, and wherein the blowing means comprises: an air blower; a blowing nozzle disposed between ends of the pair of guide bars; and a flexible connection pipe connecting the air blower and the blowing nozzle.
 13. The apparatus of claim 12, wherein the blowing means further comprises a second angle adjusting unit for rotating the blowing nozzles, and wherein the second angle adjusting unit comprises: a second fixing plate disposed between the pair of guide bars; and a second rotary plate rotatably mounted to the second fixing plate while the blowing nozzle is mounted to an upper portion of the second rotary plate.
 14. The apparatus of claim 13, wherein a second angle adjusting slot and a second fixing hole are formed in the second rotary plate and the second fixing plate to control a rotation angle of the second rotary plate, wherein the second angle adjusting slot has a curvature having an arc shape, and the second fixing hole is formed to face the second angle adjusting hole, and wherein a second fixing bolt for fixing the second rotary plate to the second fixing plate passes through the second angle adjusting slot to be engaged with the second fixing hole to press and fix the second rotary plate to the second fixing plate. 